﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace MTK_BieuThuc
{
    public class PostFix : StrategyString
    {
        public override string toString(BinaryExpr ex, Expression ex1, Expression ex2)
        {
            return ex1.toString(this) + ex2.toString(this) + ex.getOperator();
        }
    }
}
